In this Dec. 5, 2013, photo marijuana matures in ideal conditions at the Medicine Man dispensary and grow operation in northeast Denver. As Colorado prepares to be the first in the nation to allow recreational pot sales, opening Jan. 1, hopeful retailers are investing their fortunes into the legal recreational pot world, all for a chance to build even bigger ones in a fledgling industry that faces an uncertain future. (AP Photo/Ed Andrieski)

The Simi Valley man behind the California Cannabis and Hemp Initiative 2014 says the grass-roots effort has failed to collect the required number of signatures to place it on the November ballot.